A certain type of material allows electricity to flow through it, but it does not flow quickly or easily through it. Is the material a good or poor conductor? Does it have a low or high resistance?

A substance through which an electrical current flows poorly would be said to be a poor conductor. That is, the substance has a low conductance (or conductivity). There’s a nuance between the two terms, but it shouldn’t matter for our purposes.

Since such a material resists the flow of electric charge, the material can be said to have a high resistance (or high resistivity).

Mathematically, resistance and conductance are reciprocals of one another; a low conductance implies a high resistance, and a high conductance implies a low resistance.

Mgo2 is the oxidation state of manganese oxide